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*** Official Opteron 170 Ocing Thread ***

YooEntSinMeROYT said:
Seems to. I dropped back down to 200HTT & still doing the same thing.
It only seems to be when choosing blend on the torture test options. One core seems to be occupied but the other does not get stressed (when looking at the process in task manager). If I choose small or large FFTs then it seems to run OK maximising both cores.

What do most people select? Blend?
Click to expand...

i have this problem too and i think its because both cores are trying to access the memory to test it, set it to test the cpu only and both instances run perfect and pass many tests in the same time frame.

im sure you can specify the amount of ram each core uses so try doing that and give each core an equal amount of ram to work with.
________
Suzuki K15
 
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I just run Large FTT's on default settings. That's good enough for me. Small FTT's is worthless as it doesn't always show instability between the CPU and memory etc i.e. the memory controller.
 
spookywillow said:
i have this problem too and i think its because both cores are trying to access the memory to test it, set it to test the cpu only and both instances run perfect and pass many tests in the same time frame.

im sure you can specify the amount of ram each core uses so try doing that and give each core an equal amount of ram to work with.
Click to expand...

Did some experimenting today & came to this conclusion too.
As I'm only running 1gig of RAM, the blend test defaults to allocating 766meg of RAM for each core. So there was not enough RAM installed to allocate to both cores.

I selected a custom option to allocate 420meg RAM to each core (used S&M to determine how much RAM was available which at the time was around 860meg) & it runs no problems.

Most people will not come across this problem as they are running 2gig of RAM. However I'm waiting for an RMA on my Ballistix PC4000 1gig sticks.

I've also noticed that S&M fails the memory test despite memtest (DFI BIOS & for Windows), & also Prime 95 (once custom setup) reporting no errors.

I wonder whether S&M suffers the same problem of ram allocation. Will find out when I get my Ballistix back.

I'm pleased I got to the bottom of this as it's been bugging me. Just a shame I ad to waste a day & a half investigating.
 
smids said:
I just run Large FTT's on default settings. That's good enough for me. Small FTT's is worthless as it doesn't always show instability between the CPU and memory etc i.e. the memory controller.
Click to expand...

RAN Large FTT's overnight on default settings & no errors so looking good.
Will see how much more I can get out of the Opty on my next days off.
However I really need to start spending some time gaming rather than tweaking. LOL :D

*edit*

Scratch that, left it overnight again on Large FFTs & it failed after 2 hours on core 0. Think I'm gonna have to up my vcore again.
 
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w3bbo said:
Np m8.

The phoenix bios is a little different to the AMI Asus use but its all pretty much straightforward if you are used to playing with the bios which you seem to be.
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Hi W3bbo.

Wow! I love this new Board!! I'm so glad I changed. But I am completely confused with the BIOS and mainly the RAM timings! I'm going to need a lot of help from the guys over at the DFI forums.

But just wanted to say thanks for the advice. I had a few problems with geting the RAID0 set working, Ihad to usre the sil raid and not the nvRAID ( :( )

I've got every thing back to 2.8ghz and I get a very good feeling that I can push it even further. I really think that with this board its looking all go for 3ghz!

Agent.

P.S. MBM5 is WAY out on the temp readings. Its suggesting at 2.8ghz on full load i'm doing about 35C. LMAO.
 
Great news Agent. Hope you manage to break that 3 gig barrier! The DFI boards do tend to read temps a little wrong, the expert more so than others so I have heard aswell as overvolting slightly. Had no problems with the NVraid although it wouldn't accept a straight port over from the A8N32 so I had to reformat which was probably for the best anyway.

Half the fun in owning a DFI board is finding out what half the settings do and then blaming the other half you don't know when things don't work out how you want them to :D

A new modified bios was recently released by Bigtoe for all NF4 boards including the expert and Venus boards which is having some good reports so I might give that a try later as I havn't had much time over the last week to try and get the 170 I have p95/sp2004 stable @3gig, only SuperPI 32mb stable atm as I'm letting the AS5 settle on the naked core before I up the volts (again!). The new 0609 steppings are looking mighty fine so I might trade mine in soon.
 
Agent WD40 said:
Hi W3bbo.

Wow! I love this new Board!! I'm so glad I changed. But I am completely confused with the BIOS and mainly the RAM timings! I'm going to need a lot of help from the guys over at the DFI forums.

But just wanted to say thanks for the advice. I had a few problems with geting the RAID0 set working, Ihad to usre the sil raid and not the nvRAID ( :( )

I've got every thing back to 2.8ghz and I get a very good feeling that I can push it even further. I really think that with this board its looking all go for 3ghz!

Agent.

P.S. MBM5 is WAY out on the temp readings. Its suggesting at 2.8ghz on full load i'm doing about 35C. LMAO.
Click to expand...



The new bios has an option for cpu temp adj. Also have a look here which has some info on the dfi memory options:
http://www.xtremesystems.org/forums/showthread.php?t=57317

What are 170 steppings that ocuk are selling at the moment?
 
Well I've had variable results at 3ghz.
Cannot seem to get Prime 95 24.14 to play ball with my 2x512MB of Gskill PC4800 with the blend test. Due to 2 instances of Prime requiring 2 lots of 766MB (1 for each core) in order to run stress tests)
When I allocate a custom amount for each core I seem to get one of the cores (core 1) failing with an errors after anything from 2 mins to 2 hours.
Had the cores at 1.58v (1.4 *113%) & seemed to be running Large FFT test OK but then core 0 failed after a couple of hours. Tried again & failed after 12 hours.

I'm re-testing now at 1.54v (1.4*110%) & ran Large FFT test no errors for 10 hours as seen below (had to stop test at that point so missus could use PC :( )

Yoos-Opty-Overclock-1.jpg


Ran Prime customer test again with 300MB allocated to each core & core 1 failed again after a couple of hours.

I'm waiting my replacement Ballistix PC4000 2x1gig sticks back so I can test them with a 180 divider before I try upping my vcore again (1.54v shows up in MBM as 1.5v)

Never had any crashes in games so I'm happy enough so far. Will report back once I get my Ballistix back so I can run proper Blend tests.
 
Very nice clock there m8. Just a couple of things though, download the latest version of CPU-Z (looks like you are using an older version). Also keep and eye on that chipset temp. 57c isn't a major concern but it is still pretty high, maybe increase the airflow in your case? Have you tried running your memory on a lower divider? Blend failure suggests a problem with memory and becuase large FFT has passed you obviously have a good memory controller.

Wish I could get my 170 stable @ 3 gig, most I can do is an hour or so (sa far!) regardless of what test or timings I use.
 
w3bbo said:
Very nice clock there m8. Just a couple of things though, download the latest version of CPU-Z (looks like you are using an older version). Also keep and eye on that chipset temp. 57c isn't a major concern but it is still pretty high, maybe increase the airflow in your case? Have you tried running your memory on a lower divider? Blend failure suggests a problem with memory and becuase large FFT has passed you obviously have a good memory controller.

Wish I could get my 170 stable @ 3 gig, most I can do is an hour or so (sa far!) regardless of what test or timings I use.
Click to expand...

What voltage are you having to put through your chip to get 3Ghz?
 
w3bbo said:
Very nice clock there m8. Just a couple of things though, download the latest version of CPU-Z (looks like you are using an older version). Also keep and eye on that chipset temp. 57c isn't a major concern but it is still pretty high, maybe increase the airflow in your case? Have you tried running your memory on a lower divider? Blend failure suggests a problem with memory and becuase large FFT has passed you obviously have a good memory controller.

Wish I could get my 170 stable @ 3 gig, most I can do is an hour or so (sa far!) regardless of what test or timings I use.
Click to expand...

Such is the pirc eof having 2x6800 Ultras SLI'd right near the chipset & also the Rad for watercooling them throwing heat into the case as well. I've had the temp past 65 oC before on the chipset & has not caused any problems.
Thinking of doing a bit of modding & sticking a barrel fan near the mobo. Either that or I may just install the lot in a new case.

I've been meaning to download the latest CPU-Z for sometime now, just being lazy.

I've got my 2x1gig replacement Ballistix sticks installed now & opening 2 instances of Prime 95 24.14 still has them trying to allot all the available 2 gig to each core when selecting Blend. I have to key in a customer setting for it to test the 2 cores at the same time.

Still haven't got this entirely stable at 3ghz, but I'll get there. Then I'll try for 3.1ghz.
 
I just started trying to overclock my Opteron 170 today.

I'm getting to 2.5GHz on air, 41 degrees under load, max for default voltages.

Now i'm upping the voltage to see how high it can go, but i'm noticing something odd about the VCore voltage. WHen it was at 1.35 (default), the readings idled at about 1.375V. Now that i've upped it to 1.4V, it idles at 1.42V, and goes up to 1.44 under load. Is this something i should worry about?
 
Artheas said:
I just started trying to overclock my Opteron 170 today.

I'm getting to 2.5GHz on air, 41 degrees under load, max for default voltages.

Now i'm upping the voltage to see how high it can go, but i'm noticing something odd about the VCore voltage. WHen it was at 1.35 (default), the readings idled at about 1.375V. Now that i've upped it to 1.4V, it idles at 1.42V, and goes up to 1.44 under load. Is this something i should worry about?
Click to expand...

Its not to bad. Its to do with the phase circuits on the motherboard. The more phases the more stable the power will be. Also try and keep the temps low. Have found that the 170's seem to fail prime runs above 45degrees so keep temps as low as possible
 
is that as in sig at 2.8 with 1.4v as thats very high for such low volts. Could be bad ihs contact. If it is then i expect that to be a very good clocker once temps have been lowered by removing ihs. Check your heatsink is fitted right first
 
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